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ctdbHasDelField
Tests for the presence of the internal delete flag.
Declaration
CTBOOL ctdbDECL ctdbHasDelField(CTHANDLE Handle);
Description
ctdbHasDelField() tests for the presence of the internal delete flag, $DELFLD$, field in a table. $DELFLD$ is a hidden field that c-treeDB API automatically creates as the first field in the record buffer. $DELFLD$ is defined as a 4-byte CT_ARRAY field (to ensure proper alignment of subsequent fields) and its only purpose is to keep a place at the beginning of the record to hold the c-tree delete record flag byte when a record is deleted. This field is handled internally by c-treeDB API and should never be modified by the user.
ctdbHasDelField() receives a table handle as parameter and returns YES if the table was created with a $DELFLD$ field. ctdbHasDelField() returns NO if the table was not created with a $DELFLD$ field.
Return
Symbolic Constant |
Explanation |
|---|---|
YES |
$DELFLD$ in table. |
NO |
$DELFLD$ not in table. |
